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Did you do the key "Dance" for codes? Put key in ignition, turn to the "RUN" position - do not crank the engine - and return it back to the off position, do this four times, on the fifth time leave it in the "RUN" position and watch the check engine/power loss light and count the flashes. Should start with five flashes (start of test) followed by a couple series of flashes keep track of the number of flashes as this will tell you what sensor is on the fritz. The test is over when it flashes five times again. Also the chain stores will scan for zero cost.....Just for grins try unplugging the water temp sensor (usually near the thremostat) see if car stays running......Plug it back in to double check.
P8 due to outdoor pipe temp high. Due to condenser blocked. But you said it's cleaned. Check speed of fan rpm. After short time fan may rotates slowly. Please replace fan capacitor in out door unit.
Diarmait -- Technical Service Manual for the SubZero 600 series can be downloaded at: [https://docstore.fedex.com/subzero] Username=subzero Password=subzero Write back if you still need help. -- SWT
"EC 50" means excessive refrigerator compressor run time. What is the serial number? Is the condenser fan running? Can you feel airflow from the left side up top? Is the strip between the fridge and freezer hot to the touch?
Your unit is sensing that the condenser fan is running at a lower rpm than it should. that is how you get the signal. You will need to replace the condensor motor if your coils are cleaned already. That is the only cure for your problem. I hope this helps you out.
If you cleaned out the condensor unit, your problem is probably a bad evaporator. Schedule a service call. If the condensor was really dirty then you may have just compacted the dust into the condensor in which case a shot of CO2 would be a good idea.
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